Tolerance.ca
Director / Editor: Victor Teboul, Ph.D.
Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

I've always wondered: why are the stars, planets and moons round, when comets and asteroids aren't?

By Jonti Horner, Professor (Astrophysics), University of Southern Queensland
The reason bigger objects in space are round and smaller ones aren't boils down to gravity. And it's the same reason mountains on Earth can only grow to a certain heightThe Conversation


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